Fuser drive motor service check
Action Yes No
Step 1
Ensure the cable for socket J24 on the controller board is properly
connected.
Is the connection properly connected?
Go to step 2. Reseat the
connections.
Go to step 2.
Step 2
Reset the machine.
Does the error continue?
Replace the fuser drive
motor. See
“Fuser
drive motor removal”
on page 425.
Go to step 3.
The problem is
resolved.
Step 3
Reset the machine.
Does the error continue?
Replace the controller
board. See
“Controller
board removal” on
page 422.
The problem is
resolved.
121 errors
121 error messages
Error code Description Action
121.07 Fuser has been on for more than allowed
after a gap blowout, and the temperature
is still too cold
Go to
“Fuser service check” on page 250.
121.08 Fuser was under temperature when page
was in fuser
121.20 Fuser did not reach the required
temperature during steady state control
121.22 Fuser did not warm enough to start line
voltage detection
121.23 Fuser took too long to heat to line
detection temperature
121.24 Fuser never reached fuser detection
temperature
121.25 After line voltage detection, control did not
roll over to steady state control in time
If the problem remains, replace the
controller board.
Go to
“Controller board removal” on page 422.
7463
Diagnostic information
248
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